Roll-holding camera.



"Patented May 20,A i902.

R. H. T'RUMBULL. BULL HOLDING CAMERA.

(Application led May 9. 1901.)

(lo Model.) y

# fig-:2- 12.5 ff' mail; (a j; :1]- fw UNITED' STATES PATENT rricn.

ROLLIN H. TRUMBULL, OF CHICAGO, 'ILLIOII` ROLL-HOLDING CAMERA.

SPEGIFICATIOYN forming part of Letters Patent No. 700,264, dated May 2t), 1902.

l` Application tiled May 9,1901.. Serial No. 59,360. (No model.)

To @ZZ fwhomf may concern:

Be it known that I, ROLLIN H.' TRUMBULL, a citizen of thel United States of America, residing at Chicago, in the county of Cook and State'of'lllinois, have invented certain new and useful Improvements in Roll-Holding Cameras, of which the following is a specication.

My invention relates to certain improvements in devices for controllin g photographic films for cameras, 'the object being to provide means for the accommodation of Various widths of lilms and for otherwise controlling them, so as to keep them in the proper relative position with respect to the lens.

To such end the invention consists in certain novel features of construction, a description of which will be found in the followingr specilication andthe essential featuresm oro denitely pointed out in the claims.

In the drawings furnished herewith, Figure 1 is a View, partly in plan and partlyin horizontal section, through a camera in which the invention is emb died, the line of section be-l ing indicated at1 1 of Fig. 2. Fig. 2 is a side View of the parts seen in Fig. 1 looking in the direction of the arrow 2 in Fig. 1. Fig. 3 is a detail vertical section in line 3 3 of Fig. 1..

Fig. 4 is a detail side view of a spindle upon which the film-spools are mounted, Fig. 5 is a View partly in plan and partly in horizontal. section, the line of section being indicated at 5 5 of Fig. 3; and Fig. 6 isa perspective View of a portion of a clutch and a portion of one of the spools.

In the views, A represents the frame of an ordinary camera containing the lm and filmcontrolling devices. A lens a is supportedin the front wall a', and the film passes from the spool B through a friction device C, around two rollers D D', between which the film is exposed, and between two rollers D2 D3 to the winding-spool B.. The film ,iswound upon the spool B by means of a spindle E, either by hand or automatically by suitable mechanical means. (Not shown in the drawings.)

Referring now to Figs. 3 and 4, the spool B will be seen mounted upon the spindle E, extending longitudinally through the same, 5o and seated in thimbles e e', mounted in the this purpose.

topandbottom boards a2 a3 of the frame A.

The spool rests upon a verticallyadjustable bracket F, secured in place uponithe wall a' is riveted in the bracket and extends out througha slot a4 in the,walltyandpasses through a hole in theplatef", which is of such size as to completely cover up the slot a4, in all positions of the bracket upon the wall a', and thus prevent light from entering at this place.

The upper end of the spindle E is secured in a hollow cap e2, preferably knurled at its upper end and seated in the thimble e. A pivoted finger G, spring-pressed in one direction by a spring g, rests aga-inst Vthe cap e2 and upon the top of abeveled iiange es, extending around the same, thus preventing the spindle from being withdrawn except when the finger G is moved away from the flange e3. Upon the spindle is mounted a sliding clutch I, con nected therewith so 'as toA be non-rotatable with respect thereto, and, as shown, apin t,

Secured in the clutch and passing through a slot e4 in the spindle, may be employed for The lower end ofthe clutch is formed with clutch-teeth t', adapted to enter notches b in the upper end of-the spools (see Fig. 6) to connectthe spool with the spindle.

1 A coiled spring m, confined between the head of the cap and the pin fi on the clutch, serves to hold the latter in engagement with the spool. It is obvious thatby the proper adjustment of the bracket F a great variety of sizes of films may be accommodated, from the Smallest size to that which can be contained between the upper and lower walls of the frame. ,Y

To keep a certain amount of Afriction upon the film, the latter is passed between two curved and preferably liexibleplates K, (see Fig. 1,) the plate J being secured to the top and bottom boards a2 a3 of the frame by means of lugs j. The plate K is hinged upon a post 7c, which is secured to the frame, and an,ad

justing-screw 7c', threaded in the post 7a and bearing upon the plate K, furnishes means for giving the requisiteamount of friction required.

I am aware that more or less variation of IOIG the diierent parts is possible, and I do not, therefore, limit myself to the specific construction shown and described.

I claim as new and desire to secure by Letters Patent- 1. In a camera, a spindle adapted to pass longitudinally through the hlm-spools and form the axis of rotation thereof,and a bracket supported upon one of the Walls of the camera-box and adapted to be adjusted upon said box to accommodate Various sizes of spools; substantially as described.

2. In a camera, the combination with a rotatable spindle, of a bracket adapted to sup port the iilm-spools, secured to the camerabox and longitudinally adjustable upon said box to accommodate Various sizes of spools, and a clutch sliding upon said spindle, nonrotatable with respect thereto and engaging the spools; substantially as described.

3. In a camera, the combination With a verticallyadjustable bracket adapted to support the {ihn-spools, of a spindle forming the axis of rotation of said spools, and extending Without the camera in the form of a knob by means of which the spool may be rotated, a clutch longitudinally movable upon said spindle but non-rotatable with respect thereto, and adapted to positively engage the spool, and a spring to hold said clutch in engagement with the spool; substantially as described.

L1. In a camera, the combination with a camera-box, of a spindle adapted to receive the film-spool, a bracket for supporting the spindie, a screw threaded pin secured in the bracket and extending ont through a suitable slot in the Wall of the box, and a nut upon the end of the pin for screwing the bracket in place; substantially as described.

` In Witness whereof I have hereunto sot my hand, at Chicago, in the county of Cook and State of Illinois, this 4th day of May, A. D. 1901.

ROLLIN Il. TRUMBULL.

Vtitnesses:`

CHAs. O. SHERVEY, S. BLISS. 

